Elna 2 thread overlocker contesso mo103

The needle thread breaks
1. The needle thread is not threaded properly
2. The needle thread tension is too tight
3.the needle is bent or blunt
4. The needle is incorrectly inserted into the needle holder
5. The needle thread and the bobbin thread are not set under the presser foot when starting sewing
6. The threads were not drawn to the rear after sewing
7. The thread is either too heavy or too fine for the needle
Bobbin thread breaks
1. The bobbin thread is not threaded properly in the bobbin holder
2. Lint has collected in the bobbin holder
3. The bobbin is damaged and doesn't turn smoothly

Hello,
Remove the bobbin and drop a little oil in the bobbin holder at the center which you usually insert the bobbin...

Happy Fixya... keep me posted on the result....

The needle thread breaks
1. the needle thread is not threaded properly
2. The needle thread tension is to tight
3. The needle is bent or blunt
4. The needle is incorrectly inserted
5. The needle thread & the bobbin thread are not set under the presser foot when starting to sew
6. the threads were not drawn to the rear after sewing
7. The thread is either to heavy or to fine for the needle


Bobbin thread breaks

1. There is a right way & wrong way to insert the bobbin in the case --when you insert the bobbin in if it doesn't stitch correctly turn the bobbin over see if that helps or bobbin case is not inserted correctly

2. Lint has collected in the bobbin holder

3. The bobbin is damaged & doesn't turn smoothly

4. Lower thread tension is two tight

I do not know this model but why don't you visit www.about.sewing.com, there is good general threading information there as well as care and maintenance tips for sewing machines. Older machines need oiling, many modern ones have nylon parts or oiling wicks so not required so often. If you can see red marks on parts of the machine, these are usually oiling spots.

sewing machines are usually horizontal top loading bobbins where the bobbin goes into a bobbin holder and the thread gets clicked into a tension spring.

Or vertical front loading bobbins inside a removable bobbin case with a tension spring on the outside of the bobbin case.

Top threading up is usually through a number of eyelets, through a tension device of some sort, then down to the needle.

Remember, the scarf (cut out) of the needle should face to the back of the machine. Most domestic sewing machines use 130/704H needle system and the needle has a flat shank which goes to the back in the needle holder so you get this right.

You can also try www.sewingpartsonline.com or www.sewusa.com, both list some instruction manuals and threading diagrams for some makes and models.

try these suggestions
Not picking up thread can be several issues
1.bobbin is miss wound
2. bobbin case isn't snapped in properly
3. you're using the wrong type bobbin
4. needle is bent or burred
5. check bobbin area for lint & loose threads
6. little oil--check operation manual for this
7.machine is out of time --done by service tech
8.check automatic thread cutter to see if it’s bent
but most of the time the issue is once again mis-threading or the thread coming off take up lever
sewing machine needles put in incorrectly
Check & make sure needle is in the needle holder correctly.
Check your manual for threading diagram
check bobbin area including case for lint & loose threads
Take the needle plate off & clean under neath it ( if your machine has screws that hold the needle plate on be careful NOT TO DAMAGE THE SCREWS) because a damaged screw that has a burr on it can pull fabric
Each time you start to sew
1.make sure there’s 2 to 3 inches of top thread when you put the needle down for the bobbin thread
2.make sure there is a 2 to 3 inch of bobbin thread so the top thread can pick it up
3.Pull the tail of the top and bobbin thread behind the presser foot
hope these help--please rate this with the thumbs in the upper right hand corner-thank you

You have a great machine. These are hard to thread but once you have mastered it, you'll have many years of great use. The owner's manual has instructions, as well as the inside door of the machine (the door that folds down on the front bottom part of the machine. However, you might want to follow-up with your local authorized Husqvarna Viking dealer. Most are eager to help you even if you didn't purchase the machine from them. Some even have classes on using the serger. You might try several stores in the area. Suggest that it be serviced and cleaned by an authorized Husqvarna Viking Dealer. You can find the nearest dealer by click on the "Dealer" link at http://www.husqvarnaviking.com

Good luck.

One fundamental tip is to follow the color coding, start with green, then blue/navy, then red, and finally yellow. The sequence is work inside to outside with threading (green - blue - red - yellow). Do not try different order--especially with green and blue -- since the threads build on each other. I have switched yellow and red with no impact but green then blue is always the proper order.

Good luck.

place spool of thread in , route it towards your bobbin holder, take thread and put through one hole about 4 inches hanging ontop. press it in and slide it to the right where you hear a click, hit the peddle, should be winding, it will automatically stop on its own when full. click it to the left when done, snip it and then drop that into your bobbin holder , cover your plate, thread your upper thread and presto you are now sewing with your threaded bobbin, always remember these steps. #1 material choice #2 thread weight #3 needle size. you got to match those 3 for beautiful perfect stitches.

1. Push in indent (illustration 1) on hand wheel disc. This will stop the needle from moving.
2. Place spool of thread on spool pin.
3. Slide spool pin holder/cap (illustration 2) firmly over rim of spool to prevent thread from tangling.

1. Push in indent (illustration 1) on hand wheel disc. This will stop the needle from moving.
2. Place spool of thread on spool pin.
3. Slide spool pin holder/cap (illustration 2) firmly over rim of spool to prevent thread from tangling.

4. Lead thread passing it first through the lower slot of the thread guide. Next through the upper slot, leading the thread to the right and around (illustration 3).
5. Wind thread clockwise around front of bobbin winder tension disc (illustration 4).
7. Pass thread end, from inside, through small hole in rim of bobbin.
8. Holding thread end, step on speed controller to run machine until desired amount of thread is wound. (Winding stops automatically once bobbin is full.)
9. Cut thread; push bobbin to the left and remove it from bobbin winder pin.
10. Trim thread end from top of bobbin.
11. Press the bobbin winding indent on hand wheel to its original position. If necessary, turn hand wheel to engage needle movement.

Solution taken from "Handbook for Huskylock Sewing Machine Models 1001L/1000L/1000"

1. Raise the presser foot by using presser foot lever. When the presser foot is raised, the two thread tension discs in the thread tension control panel are released so that thread passes freely between them. Otherwise thread tension may not be correct.

Important! When threading the needle, always be sure to lift the presser foot lever, and also take care to thread in the proper order.

Threading order:
1. Upper looper thread (green)
2. Lower looper thread (blue)
3. Double chain stitch looper thread (purple) in case of 5 thread stitch or double chain stitch
4. Right needle thread (red)
5. Left needle thread or double chain needle thread (yellow)

Caution!
Because the left thread tension dial (yellow) is used for either the left needle or the double chain stitch needle, these needles will never be used at the same time.

Upper looper (green) sequence:
1. Thread holder (silver triangle openings attached to thread holder stand)
2. Thread guide (flat silver clips just behind thread tension disc)
3. Thread tension disc (circular knobs with numbers for tension setting)
4. Pull thread around upper looper guide and upper looper
5. Pull thread into hole of upper looper

Lower looper (blue)
Repeat 1, 2, 3.
4. Pull thread around guide (see color coded chart inside front serger cover).

Easy threading mechanism (for lower looper)
1. Pull out the lower looper threading lever
2. Thread the lower looper and position the thread on hook of the lower looper
threading lever.
3. Push the lower looper threading lever back to its basic position while
holding the end of the thread.

Caution:
When returning the lower looper threading lever, always make sure that the two
blue triangle marks (directional arrows) meet each other.

Right needle thread (red)
Left needle thread (yellow)
Important: Thread the needles after threading of lower looper and upper looper.
First raise the presser foot lever, and then thread the needle threads in order shown in color coded thread guide.

I had the same problem with the blue thread- it would sew and inch then pop- mine worked wihtout breaking after I re threaded in this order: green, blue, red then yellow